def test_nta_from_xml():
"""Test NTA.from_xml and NTA.from_element."""
nta = NTA.from_xml(testcase_dir + "nta_xml_files/small_nta.xml")
assert len(nta.templates) == 2
assert nta.declaration.text == "// Place global declarations here."
assert (
nta.system.text[:-3]
== "// Place template instantiations here.\nProcess1 = Test1();\nProcess2 = Test2();\n// List one or more processes to be composed into a system.\nsystem Process1, Process2;"
)
assert len(nta.queries) == 1
nta = NTA.from_xml(testcase_dir + "nta_xml_files/big_nta.xml")
assert len(nta.templates) == 4
assert nta.declaration.text == "// Place global declarations here.\nchan c1;"
assert len(nta.queries) == 1
def test_constraint_cache_apply_single_patch():
"""Test _apply_single_patch method."""
nta = NTA.from_xml(testcase_dir +
"constraint_cache_xml_files/test01.xml")
cc = nta.patch_cache
# Update the threshold of the transition in the second template.
# x <= 10 -> x <= 15
template = nta.templates[1] # Second template
transition = template.graph._transitions[0] # First template
constraints = transition.guard.constraints
update = ConstraintUpdate(constraints[0], "15") # type: ignore
cp = ConstraintPatch(template, update, obj_ref=transition)
cc.cache(cp)
lines = open(testcase_dir +
"constraint_cache_xml_files/test01.xml").readlines()
lines_subject_to_change = lines[:]
cc._apply_single_patch(lines_subject_to_change, cc.patches[0])
# 56th line is changed.
assert lines[:56] == lines_subject_to_change[:56]
assert lines[57:] == lines_subject_to_change[57:]
assert lines[56].replace("10", "15") == lines_subject_to_change[56]
def test_constraint_cache_init():
"""Test ConstraintCache()."""
nta = NTA.from_xml(testcase_dir +
"constraint_cache_xml_files/test01.xml")
cc = nta.patch_cache
assert cc.nta == nta
assert cc.patches == []
def test_nta_flush_changes_no_changes():
"""Test NTA.flush_constraint_changes() with no changes."""
path = testcase_dir + "nta_xml_files/small_nta.xml"
nta = NTA.from_xml(path)
nta.flush_constraint_changes("/tmp/out.xml")
with open(path) as inf, open("/tmp/out.xml") as outf:
inlines, outlines = inf.readlines(), outf.readlines()
for i in range(len(inlines)):
assert _dec_check(inlines[i], outlines[i])
path = testcase_dir + "nta_xml_files/big_nta.xml"
nta = NTA.from_xml(path)
nta.flush_constraint_changes("/tmp/out.xml")
with open(path) as inf, open("/tmp/out.xml") as outf:
inlines, outlines = inf.readlines(), outf.readlines()
for i in range(len(inlines)):
assert _dec_check(inlines[i], outlines[i])
def test_nta_to_file():
"""Test NTA.to_file."""
path = testcase_dir + "nta_xml_files/small_nta.xml"
nta = NTA.from_xml(path)
nta.to_file("/tmp/out.xml")
with open(path) as inf, open("/tmp/out.xml") as outf:
inlines, outlines = inf.readlines(), outf.readlines()
for i in range(len(inlines)):
assert _dec_check(inlines[i], outlines[i])
path = testcase_dir + "nta_xml_files/big_nta.xml"
nta = NTA.from_xml(path)
nta.to_file("/tmp/out.xml")
with open(path) as inf, open("/tmp/out.xml") as outf:
inlines, outlines = inf.readlines(), outf.readlines()
for i in range(len(inlines)):
assert _dec_check(inlines[i], outlines[i])
def test_nta_init():
"""Test NTA()."""
nta = NTA(
declaration=Declaration("foo"),
templates=[],
system=SystemDeclaration("bar"),
queries=[],
context=Context.empty()
)
assert nta.declaration.text == "foo"
assert nta.system.text == "bar"
assert nta.templates == []
assert nta.queries == []
assert nta._associated_file == ""
assert nta._doctype == ""
def test_constraint_cache_cache():
"""Test ConstraintCache.cache()."""
nta = NTA.from_xml(testcase_dir +
"constraint_cache_xml_files/test01.xml")
cc = nta.patch_cache
# Update the threshold of the transition in the second template.
# x <= 10 -> x <= 15
template = nta.templates[1] # Second template
transition = template.graph._transitions[0] # First template
constraints = transition.guard.constraints
update = ConstraintUpdate(constraints[0], 15) # type: ignore
cp = ConstraintPatch(template, update, obj_ref=transition)
cc.cache(cp)
assert cc.patches == [cp]
def test_constraint_patch_init_location():
"""Test ConstraintPatch()."""
nta = NTA.from_xml(testcase_dir +
"constraint_cache_xml_files/test01.xml")
# Update the invariant of l0 in the first template.
# x <= 10 -> x <= 15
template = nta.templates[0] # First template
location = template.graph._named_locations["l0"]
constraints = location.invariant.constraints
update = ConstraintUpdate(constraints[0], 15) # type: ignore
cp = ConstraintPatch(template, update, obj_ref=location)
assert cp.template_ref == template
assert cp.obj_ref == location
assert cp.change == update
def test_constraint_patch_init_transition():
"""Test ConstraintPatch()."""
nta = NTA.from_xml(testcase_dir +
"constraint_cache_xml_files/test01.xml")
# Update the threshold of the transition in the second template.
# x <= 10 -> x <= 15
template = nta.templates[1] # Second template
transition = template.graph._transitions[0] # First transition
constraints = transition.guard.constraints
update = ConstraintUpdate(constraints[0], 15) # type: ignore
cp = ConstraintPatch(template, update, obj_ref=transition)
assert cp.template_ref == template
assert cp.obj_ref == transition
assert cp.change == update